title: Examining the factor structure of the Multiple Sclerosis Impact Scale.
abstract: The purpose of this study was to investigate the factor structure of the Multiple Sclerosis Impact Scale (MSIS-29) to assess its suitability for modeling the impact of MS on a nation-wide sample of individuals from the United States. Investigators completed a Confirmatory Factor Analysis (CFA) to examine the two-factor structure proposed by Hobart et al. [17]. Although the original MSIS-29 factor structure did not fit the data exactly, the hypothesized two-factor model was partially supported in the current data. Implications for future instrument development and rehabilitation practice are discussed.
authors.affiliation: School of Foundations, Leadership, and Administration, Kent State University, Kent,OH, USA.
authors.forename: Shawn M
authors.initials: SM
authors.lastname: Fitzgerald
authors.affiliation: School of Foundations, Leadership, and Administration, Kent State University, Kent,OH, USA.
authors.forename: Jian
authors.initials: J
authors.lastname: Li
authors.affiliation: School of Lifespan Development and Educational Sciences, Kent State University, Kent, OH, USA.
authors.forename: Phillip D
authors.initials: PD
authors.lastname: Rumrill
authors.affiliation: School of Foundations, Leadership, and Administration, Kent State University, Kent,OH, USA.
authors.forename: William
authors.initials: W
authors.lastname: Merchant
authors.affiliation: Department of Early Childhood, Special Education, and Rehabilitation Counseling, University of Kentucky, Lexington, KY, USA.
authors.forename: Malachy
authors.initials: M
authors.lastname: Bishop
mesh_terms: D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009103:Multiple Sclerosis; D011594:Psychometrics; D018434:Sickness Impact Profile; D014481:United States; D014938:Work Capacity Evaluation
keywords: Confirmatory Factor Analysis (CFA); Multiple Sclerosis Impact Scale (MSIS-29); Multiple sclerosis; health outcome measurement; psychometric methods